Philips PM 6611 - General Information; Introduction; Il. Technical Data

I. INTRODUCTION GENERAL INFORMATION
The counters in the PM 6610-series have frequency ranges from 10 Hz up to 80 MHz, 250 MHz, 520 MHz and 1 GHz
respectively for the PM 6611, PM 6613, PM 6614 and PM 6615.
The VHF and UHF counters PM 6613, PM 6614 and PM 6615 offer two different signal inputs for RF- and LF-signals.
All models can measure frequency, period, ratio and have a totalizing mode.
Optional accessories such as four different oscillators, a battery unit, a BCD output unit and a D/A converter ex-
tend the field of application.
Il. TECHNICAL DATA
Properties expressed in numerical values with statement of tolerances are guaranteed. Numerical values without
tolerances are intended for information purposes only and indicate the properties of an average instrument. The
numerical values hold good for the nominal mains voltage.
A. MEASUREMENTS
Frequency
Range 10 Hz—80 MHz, PM 6611
10 Hz—250 MHz, PM 6613
10 Hz—520 MHz, PM 6614
10 Hz—1000 MHz, PM 6615
Gate times 10 ms,100 ms, 1 s and 10 s, INPUT A
The gate time is multiplied with a prescaling factor if input B is used.
Resolution 100 Hz, 10 Hz, 1 Hz and 0.1 Hz
Accuracy
+
1
count
+
time
base
error
Single period A
Range 100 ns—100 s
Frequency counted 10 MHz
Time resolution 100 ns
Accuracy + 1 count + trigger error* + time base error
* Trigger error is +3 Xx 10 for signals with signal to noise ratio of = 40 dB.